Let GGG be a magma with binary operation ⋅\cdot⋅ and sub-structure HHH. A left coset of the HHH for the element x∈Gx\in Gx∈G is the set x⋅H=x⋅h∣h∈Hx\cdot H = {x\cdot h\mid h \in H}x⋅H=x⋅h∣h∈H.
Wikidata ID: Q751969